Results 11 to 20 of about 7,139,942 (297)
Pattern Formation in Mesic Savannas. [PDF]
Bull Math Biol, 2023 AbstractWe analyze a spatially extended version of a well-known model of forest-savanna dynamics, which presents as a system of nonlinear partial integro-differential equations, and study necessary conditions for pattern-forming bifurcations. Homogeneous solutions dominate the dynamics of the standard forest-savanna model, regardless of the length ...
Patterson D +3 more
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Physical model of end-diastolic and end-systolic pressure-volume relationships of a heart
Frontiers in Physiology, 2023 Left ventricular stiffness and contractility, characterized by the end-diastolic pressure-volume relationship (EDPVR) and the end-systolic pressure-volume relationship (ESPVR), are two important indicators of the performance of the human heart.
Yunxiao Zhang +9 more
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On the Risk of Infection by Infectious Aerosols in Large Indoor Spaces
Aerosol and Air Quality Research, 2022 Airborne diseases can be transmitted by infectious aerosols in the near field, i.e., in close proximity, or in the far field, i.e., by infectious aerosols that are well mixed within the indoor air. Is it possible to say which mode of disease transmission
Bardia Hejazi +4 more
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Computational analyses decipher the primordial folding coding the 3D structure of the beetle horn
Scientific Reports, 2021 The beetle horn primordium is a complex and compactly folded epithelial sheet located beneath the larval cuticle. Only by unfolding the primordium can the complete 3D shape of the horn appear, suggesting that the morphology of beetle horns is encoded in ...
Keisuke Matsuda +4 more
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Model-based prediction of spatial gene expression via generative linear mapping
Nature Communications, 2021 Single cell RNA-seq loses spatial information of gene expression in multicellular systems because tissue must be dissociated. Here, the authors show the spatial gene expression profiles can be both accurately and robustly reconstructed by a new ...
Yasushi Okochi +4 more
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Electrophysiological Characterization of Human Atria: The Understated Role of Temperature
Frontiers in Physiology, 2021 Ambient temperature has a profound influence on cellular electrophysiology through direct control over the gating mechanisms of different ion channels. In the heart, low temperature is known to favor prolongation of the action potential.
Rupamanjari Majumder +10 more
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Pattern formation in semiconductors [PDF]
Nature, 1999 In semiconductors, nonlinear generation and recombination processes of free carriers and nonlinear charge transport can give rise to non-equilibrium phase transitions. At low temperatures, the basic nonlinearity is due to the autocatalytic generation of free carriers by impact ionization of shallow impurities.
V V, Bel'kov +5 more
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Honeybee flight dynamics and pair separation in windy conditions near the hive entrance
New Journal of Physics, 2023 Animals and living organisms are continuously adapting to changes in their environment. How do animals, especially those that are critical to their ecosystem, respond to rapidly changing conditions in their environment?
Bardia Hejazi +3 more
doaj +1 more source
Pulsed interaction signals as a route to biological pattern formation [PDF]
, 2023 We identify a mechanism for biological spatial pattern formation arising when the signals that mediate interactions between individuals in a population have pulsed character.
López, Cristóbal +2 more
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Honeybees modify flight trajectories in turbulent wind
New Journal of Physics, 2022 In windy conditions, the air is turbulent. The strong and intermittent velocity variations of turbulence are invisible to flying animals. Nevertheless, flying animals, not much larger than the smallest scales of turbulence, manage to maneuver these ...
Bardia Hejazi +3 more
doaj +1 more source